US Bridges

Nfa 1801 (sa 8109) over Dyer Creek

Good

Stewart County, Tennessee · Big Rock;between SR76&120 · Structure no. 81S62660005

Built
2017
8 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
27 ft
1 main span
Daily traffic
300
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1801 (sa 8109) over Dyer Creek is a concrete continuous culvert carrying Nfa 1801 (sa 8109) over Dyer Creek in Stewart County, Tennessee. It was built in 2017, so it is 8 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 300 vehicles a day, roughly 3% of them trucks, projected to reach 480 by 2042. The structure is 27 ft (8.2 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesNfa 1801 (sa 8109)
CrossesDyer Creek
LocationBig Rock;between SR76&120
RouteCounty Highway 1801
Coordinates36.57808, -87.75623
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length27 ft (8.2 m)
Longest span18 ft (5.5 m)
Deck width27 ft (8.1 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2021)
Projected traffic480 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1801 (sa 8109) over Dyer Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is Nfa 1801 (sa 8109) over Dyer Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does Nfa 1801 (sa 8109) over Dyer Creek carry?

About 300 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1801 (sa 8109) over Dyer Creek?

The structure is 27 ft (8.2 m) long with a longest span of 18 ft (5.5 m) and a deck 27 ft wide.

Who owns Nfa 1801 (sa 8109) over Dyer Creek?

It is owned by the County Highway Agency.